Virtual physical experiment system and building method thereof

Abstract

The present invention discloses a virtual physical experiment system and a building method thereof, and belongs to the teaching assistant system technology field. The system comprises a man-machine interaction interface and an internal program structure, and the internal program structure comprises a language program programmed by a virtual instrument development platform according to the physical principles and the physical parameters and used for controlling the action of the man-machine interaction interface. The building method comprises the steps of using the controls in the virtual instrument development platform to substitute for the to-be-substituted parts of a real instrument and apparatus photograph; utilizing a sequential structure to set the initial values for all controls; utilizing an event structure to programme an accumulative program for the controls; according to the corresponding physical principles, utilizing a cycle structure to write in the corresponding formula nodes of the controls at different positions, utilizing a condition structure to obtain the corresponding results, displaying and beautifying the interface, generating the executable files and publishing. According to the present invention, the students are helped to preview before classes, demonstrate and operation in classes and review after classes, and the experiment course learning efficiency of the students and the experiment course teaching effect are improved.

Description

technical field

[0001] The invention relates to a virtual physics experiment system and a construction method thereof, belonging to the technical field of teaching auxiliary systems. Background technique

[0002] College physics experiment course is a major basic course for science and engineering students to systematically study experimental methods and cultivate scientific experiment ability. However, in the actual teaching process, on the one hand, due to the limited class hours, teachers often cannot fully explain the experimental principles and operation methods in the course lectures; on the other hand, students can only understand some principles through pre-class preview. It is impossible to make intuitive comparisons in combination with reality, especially for the use of some more complex and sophisticated experimental instruments in experiments, and students cannot even understand the design principles and operating mechanisms of the instruments. In this way, stud...

Examples

Embodiment 1

[0027] like figure 1 As shown, a virtual physics experiment system for Fourier analysis of periodic signals, the internal language program uses the internal simulation signal, band-pass filter, single-frequency measurement, sequence structure, event structure, and loop structure of LabVIEW8.5 software , Conditional structure (arithmetic and comparison) written.

[0028] The construction method of the virtual physical experiment system for Fourier analysis of periodic signals is as follows:

[0029] Step A. Make the human-computer interaction interface: Obtain photos of real instruments and meters, and use drawing software (photoshop, Meitu Xiuxiu or CorelDRAW) to replace the parts (including but not limited to knobs, buttons, switches, display screens, One or more of pointers, scales, and probes) are removed, and then replaced with front panel controls (knobs, switches, check boxes, meters, gauges, etc.) in the virtual instrument development platform. Input the controls on t...

Embodiment 2

[0039] like figure 2 As shown, a virtual physical experiment system using the falling ball method to measure the viscosity of liquid, its construction method, the internal language program mainly uses the sliding bar, millisecond timer, shift register, sequence structure, event structure, Loop structures, conditional structures (arithmetic and comparison) are programmed.

[0040] The construction method of the virtual physics experiment system is basically the same as that of Embodiment 1, the difference is: take the horizontal sliding bar as an example, initially take the maximum value of the two horizontal sliding bars and fill the equivalent red area to represent the two laser beams, when the small When the ball falls to the first laser beam, the horizontal sliding bar takes half of the maximum value, that is, the ball blocks the laser, the receiver cannot receive the signal, and the stopwatch starts timing. The experimental interface is vivid, intuitive and beautiful. Th...

technical field

[0001] The invention relates to a virtual physics experiment system and a construction method thereof, belonging to the technical field of teaching auxiliary systems. Background technique

[0002] College physics experiment course is a major basic course for science and engineering students to systematically study experimental methods and cultivate scientific experiment ability. However, in the actual teaching process, on the one hand, due to the limited class hours, teachers often cannot fully explain the experimental principles and operation methods in the course lectures; on the other hand, students can only understand some principles through pre-class preview. It is impossible to make intuitive comparisons in combination with reality, especially for the use of some more complex and sophisticated experimental instruments in experiments, and students cannot even understand the design principles and operating mechanisms of the instruments. In this way, stud...

Examples

Embodiment 1

[0027] like figure 1 As shown, a virtual physics experiment system for Fourier analysis of periodic signals, the internal language program uses the internal simulation signal, band-pass filter, single-frequency measurement, sequence structure, event structure, and loop structure of LabVIEW8.5 software , Conditional structure (arithmetic and comparison) written.

[0028] The construction method of the virtual physical experiment system for Fourier analysis of periodic signals is as follows:

[0029] Step A. Make the human-computer interaction interface: Obtain photos of real instruments and meters, and use drawing software (photoshop, Meitu Xiuxiu or CorelDRAW) to replace the parts (including but not limited to knobs, buttons, switches, display screens, One or more of pointers, scales, and probes) are removed, and then replaced with front panel controls (knobs, switches, check boxes, meters, gauges, etc.) in the virtual instrument development platform. Input the controls on t...

Embodiment 2

[0039] like figure 2 As shown, a virtual physical experiment system using the falling ball method to measure the viscosity of liquid, its construction method, the internal language program mainly uses the sliding bar, millisecond timer, shift register, sequence structure, event structure, Loop structures, conditional structures (arithmetic and comparison) are programmed.

[0040] The construction method of the virtual physics experiment system is basically the same as that of Embodiment 1, the difference is: take the horizontal sliding bar as an example, initially take the maximum value of the two horizontal sliding bars and fill the equivalent red area to represent the two laser beams, when the small When the ball falls to the first laser beam, the horizontal sliding bar takes half of the maximum value, that is, the ball blocks the laser, the receiver cannot receive the signal, and the stopwatch starts timing. The experimental interface is vivid, intuitive and beautiful. Th...

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